delete() — langchain Function Reference

Architecture documentation for the delete() function in entity.py from the langchain codebase.

Function python LangChainCore MessageInterface calls 1

Entity Profile

LangChainCore→ MessageInterface→ delete() — langchain Function Reference

Dependency Diagram

graph TD
  bcb05110_0d1a_dff9_9d77_188d5452df3f["delete()"]
  40387f29_12a3_f291_fc18_4ce17ac91db3["SQLiteEntityStore"]
  bcb05110_0d1a_dff9_9d77_188d5452df3f -->|defined in| 40387f29_12a3_f291_fc18_4ce17ac91db3
  bb3de870_d9a2_b2ef_b746_608a90b30ec8["_execute_query()"]
  bcb05110_0d1a_dff9_9d77_188d5452df3f -->|calls| bb3de870_d9a2_b2ef_b746_608a90b30ec8
  style bcb05110_0d1a_dff9_9d77_188d5452df3f fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain/langchain_classic/memory/entity.py lines 434–438

    def delete(self, key: str) -> None:
        """Deletes a key-value pair, safely quoting the table name."""
        # Ignore S608 since we validate for malicious table/session names in `__init__`
        query = f'DELETE FROM "{self.full_table_name}" WHERE key = ?'  # noqa: S608
        self._execute_query(query, (key,))